:root{--accent: #16b894;--accent-bright: #1ed0a6;--accent-dark: #0c7d63;--bg-deep: #0f1419;--card-bg: #161e27;--card-bg-2: #213040;--text: #f3f6f8;--text-dim: #9fb0bd;--danger: #ff5a5f;--warning: #ffce4d}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{margin:0;padding:0;height:100%;width:100%}html,body{overflow:hidden;background:var(--bg-deep);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-user-select:none;user-select:none;overscroll-behavior:none}#game-root{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center}#game-canvas{display:block;width:100%;height:100%;touch-action:none}.danger-flash{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:5;opacity:0;background:radial-gradient(120% 75% at 50% 100%,rgba(255,45,55,.6),transparent 62%)}.hidden{display:none!important}#hud{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;padding:max(14px,env(safe-area-inset-top)) 16px 0}.hud-top{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.hud-score{font-weight:800;font-size:clamp(30px,9vw,46px);line-height:1;text-shadow:0 2px 10px rgba(0,0,0,.55);font-variant-numeric:tabular-nums}.hud-unit{font-size:.42em;font-weight:700;color:var(--text-dim);margin-left:2px}.hud-speed{width:min(40%,180px)}.speed-label{font-size:11px;letter-spacing:.14em;font-weight:700;color:var(--text-dim);text-align:right;margin-bottom:5px;text-shadow:0 1px 4px rgba(0,0,0,.5)}.speed-track{position:relative;height:10px;border-radius:6px;background:#0006;overflow:hidden;box-shadow:inset 0 0 0 1px #ffffff14}.speed-fill{position:absolute;left:0;top:0;bottom:0;width:30%;border-radius:6px;background:linear-gradient(90deg,var(--accent),var(--accent-dark));transition:width .08s linear,background .2s}.speed-fill.braking{background:linear-gradient(90deg,var(--warning),#ff9d3d)}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(130% 80% at 50% -10%,rgba(22,184,148,.18),transparent 60%),linear-gradient(180deg,#0a10146b,#070b0ea8);backdrop-filter:blur(11px) saturate(1.1);-webkit-backdrop-filter:blur(11px) saturate(1.1);z-index:10}.card{position:relative;overflow:hidden;width:100%;max-width:384px;background:linear-gradient(180deg,var(--card-bg-2),var(--card-bg));border:1px solid rgba(255,255,255,.09);border-radius:24px;padding:30px 26px 26px;text-align:center;box-shadow:0 34px 80px #0000008c,0 2px #ffffff0a inset;animation:pop .3s cubic-bezier(.2,.9,.3,1.2)}.card:before{content:"";position:absolute;inset:0 0 auto 0;height:2px;background:linear-gradient(90deg,transparent,var(--accent-bright),transparent);opacity:.8}@keyframes pop{0%{transform:translateY(14px) scale(.97);opacity:0}to{transform:none;opacity:1}}.brand-mark{position:relative;width:76px;height:76px;margin:0 auto 14px;border-radius:21px;background:linear-gradient(158deg,var(--accent-bright),var(--accent-dark));display:grid;place-items:center;overflow:hidden;box-shadow:0 14px 30px #0c7d6380,inset 0 1px #ffffff59}.brand-mark:before{content:"";position:absolute;left:50%;bottom:0;width:70%;height:86%;transform:translate(-50%);background:linear-gradient(to top,#00000047,#0000 78%);clip-path:polygon(34% 100%,66% 100%,54% 0,46% 0)}.brand-mark:after{content:"";position:absolute;left:50%;bottom:4%;width:6%;height:80%;transform:translate(-50%);background:repeating-linear-gradient(to top,rgba(255,255,255,.85) 0 9%,transparent 9% 22%);clip-path:polygon(20% 100%,80% 100%,60% 0,40% 0)}.brand-glyph{position:relative;z-index:1;font-size:38px;line-height:1;filter:drop-shadow(0 3px 5px rgba(0,0,0,.35))}.eyebrow{margin:0 0 2px;font-size:12px;font-weight:700;letter-spacing:.26em;text-transform:uppercase;color:var(--accent-bright)}.title{margin:2px 0 0;font-size:clamp(30px,8.4vw,40px);font-weight:800;letter-spacing:-.025em;line-height:1.02}.title-rule{width:54px;height:4px;margin:12px auto 0;border-radius:3px;background:linear-gradient(90deg,var(--accent-bright),var(--accent-dark));box-shadow:0 0 14px #1ed0a680}.subtitle{margin:14px 0 22px;color:var(--text-dim);font-size:15px;line-height:1.45}#start-form{display:flex;flex-direction:column;gap:12px;text-align:left}.field-label{font-size:13px;font-weight:600;color:var(--text-dim);margin-bottom:-4px}#player-name{width:100%;padding:14px 16px;font-size:17px;color:var(--text);background:#0000004d;border:1.5px solid rgba(255,255,255,.12);border-radius:13px;outline:none;transition:border-color .15s,box-shadow .15s}#player-name::placeholder{color:#6b7b88}#player-name:focus{border-color:var(--accent);box-shadow:0 0 0 3px #18c29c2e}.btn{position:relative;overflow:hidden;-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;cursor:pointer;font-family:inherit;font-weight:800;font-size:17px;letter-spacing:.01em;padding:16px 18px;border-radius:14px;transition:transform .08s,opacity .15s,filter .15s,box-shadow .2s}.btn:active{transform:translateY(1px) scale(.99)}.btn-primary{color:#04221b;background:linear-gradient(180deg,var(--accent-bright),var(--accent-dark));box-shadow:0 10px 24px #16b89457,inset 0 1px #fff6;margin-top:6px}.btn-primary:hover{box-shadow:0 14px 30px #16b89475,inset 0 1px #ffffff80}.btn-primary:after{content:"";position:absolute;top:0;left:-60%;width:45%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);transform:skew(-18deg);transition:left .55s cubic-bezier(.4,0,.2,1)}.btn-primary:hover:after{left:130%}.btn-primary:disabled{filter:grayscale(.7) brightness(.7);cursor:not-allowed;box-shadow:none}.btn-primary:disabled:after{display:none}.btn-ghost{color:var(--text);background:#ffffff0d;border:1px solid rgba(255,255,255,.14);margin-top:10px}.btn-ghost:hover{background:#ffffff17;border-color:#ffffff38}@media (prefers-reduced-motion: reduce){.card{animation:none}.btn-primary:after{display:none}}.how-to{margin-top:22px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08);display:flex;flex-direction:column;gap:9px}.how-to-row{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-dim)}.key{display:inline-block;min-width:74px;text-align:center;font-weight:700;font-size:12.5px;color:var(--text);background:#ffffff14;border:1px solid rgba(255,255,255,.1);border-radius:7px;padding:5px 8px}@media (hover: none) and (pointer: coarse){.how-to-desk{display:none}}.over-title{margin:0 0 4px;font-size:26px;font-weight:800}.over-reason{margin:0 0 20px;color:var(--text-dim);font-size:15px}.score-grid{display:flex;flex-direction:column;gap:2px;background:#00000040;border-radius:14px;padding:6px 16px;margin-bottom:16px}.score-row{display:flex;justify-content:space-between;align-items:center;padding:11px 0;font-size:15px;color:var(--text-dim);border-bottom:1px solid rgba(255,255,255,.06)}.score-row:last-child{border-bottom:none}.score-row span:last-child{color:var(--text);font-weight:700;font-variant-numeric:tabular-nums}.score-total{font-size:17px}.score-total span:first-child{color:var(--text);font-weight:700}.score-total span:last-child{color:var(--accent);font-weight:800;font-size:22px}.best-line{margin:0 0 18px;font-size:14px;font-weight:600;min-height:18px;color:var(--warning)}.board{margin:0 0 18px;padding-top:16px;border-top:1px solid rgba(255,255,255,.08);text-align:left}.board-solo{padding-top:4px;border-top:none}#board-screen .title-rule{margin-bottom:20px}.board-solo .board-list{max-height:min(52vh,320px)}.board-title{margin:0 0 10px;font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--text-dim)}.board-note{margin:0;padding:10px 0;font-size:13.5px;line-height:1.4;color:var(--text-dim)}.board-placing{margin:0 0 10px;font-size:16px;font-weight:800;color:var(--accent-bright)}.board-list{list-style:none;margin:0;padding:0 14px;background:#00000040;border-radius:14px;max-height:min(38vh,210px);overflow-y:auto;overscroll-behavior:contain;touch-action:pan-y}.board-row{display:grid;grid-template-columns:22px 1fr auto;gap:10px;padding:9px 0;font-size:14px}.board-place{color:var(--text-dim);font-weight:700;font-variant-numeric:tabular-nums}.board-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text)}.board-score{color:var(--text);font-weight:700;font-variant-numeric:tabular-nums}.board-row-you{position:relative;margin:0 -14px;padding-left:14px;padding-right:14px;background:#16b89424}.board-row-you:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent)}.board-row.board-row-you .board-place,.board-row.board-row-you .board-name{color:var(--accent-bright);font-weight:700}.board-row.board-row-you .board-score{color:var(--accent-bright);font-weight:800}